Benchmarks for Sensitivity and Specificity for 4,032,556 Screening Mammography Examinations from 1996 - 2005 --- based on BCSC data as of 2007

Notes

Numbers are frequencies unless otherwise indicated.

^**  Includes examinations for radiologists with minimum numbers of cases in a given column as designated; excludes examinations for which the radiologist is unknown.

^*  Sensitivity = the percentage of cancers that had an abnormal interpretation (BI-RADS category 0,4,5 or 3 with recommendation for immediate work-up)

^†  True Positive = the number of cancers that had an abnormal interpretation

^‡  Cancers = the number of examinations with a tissue diagnosis of cancer within 1 year following the examination

^§  Specificity = the percentage of non-cancers that had a negative interpretation (BI-RADS category 1, 2, or 3 without a recommendation for immediate work-up)

^||  True Negative = the number of non-cancers that had a negative interpretation

^#  Non-cancers = the number of examinations without a tissue diagnosis of cancer within 1 year following the examination

Table numbers last updated September 19, 2007. The following source must be cited when reproducing this table: NCI-funded Breast Cancer Surveillance Consortium co-operative agreement (U01CA63740, U01CA86076, U01CA86082, U01CA63736, U01CA70013, U01CA69976, U01CA63731, U01CA70040). Downloaded xx/xx/xxxx from the Breast Cancer Surveillance Consortium Web site - http://breastscreening.cancer.gov/data/benchmarks/screening/2007/table7.html .

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